Square-end nail or staple



June 16, 1925. 1,542,281

(5. X. WENDLING SQUARE END "NAIL OR STAPLE Fi led'uay 16. 1923 INVENTOR.

am/m ATTORNEYS.

Patented June 16,1925.

UNITED STATES- GEORGE x. WENIDLING, OF SAN FRANCISCO, CALIFORNIA.

SQUARE-END NAIL OR STAPLE.

Applioatlonflled May 18,

To all whom it. may concern:

Be it known that I, Gnonor: X. WENDLING, a citizen of the United States, residing at the city and county of San Francisco and 1923. Serial No. 039,888.

that various changes in the form, proportion, size and minor details of construction within the scope of the claim may be resorted to without departing from the spirit or sacri- State of California, have invented certain ficing any of the advantages of theinvention.

new and useful Improvements in Square- End Nails or Staples, of which the following is a specification.

It has been discovered in the handling of flint and splitty woods, particularly the her heavily grained woods, thatin driving nails of the present type thereinto the same are deflected through the side ofthe material whilebeing driven fully home, and in the majority of instances cause a splitting of the wood. It has also been discovered that the tapered point iron or wire nails and the machine pointed end wire nails either of the single shank or staple type, when driven into thin veneer like sheets of flinty or splitty To more fully comprehend the invention reference is directed to the accompanying drawings, wherein Fig. 1 is a view in elevation of a staple having an end of my improved type.

Fig. 2 is a view in end elevation of the sta le illustrated inFig. 1.

ig. 3 is a view illustrating the end with the concave depression.

Fig. 4 illustrates a nail made in accordance with my invention.

.Fi g. 5 is an end view thereof.

Fig. 6 is a view showing the end concave. Referring more particularly to the several views of the drawings wherein like characstructure, often split the same unless the ters of reference designate corresponding wood is green or Water soaked prior to the nailing operation. This previous preparation of the wood prior to its nailing renders the same difficult to handle and causes serious warping and splitting when the wood dries. Wire nails and staples of the wedge pointed type when driven into the wood tend right angles to the walls as at 3 affording at its periphery anannular cutting edge 4. This cutting edge may be further accentuto separate the grain, which is occasioned by ated by concaving the end 3 of the prongs 1 the point serving as a wedge tofaoilitatethe easy driving of the nail.

My present invention relates to a nail either of the single or double shank type which when driven into wood acts as a punch and cuts its own path and does not in any manner tend to split or separate the grain of the wood in its passage therethrough. It has been discovered that in the nailing of veneer like wood of coarse grain or flinty nature, a wire nail or staple, the end of which as at I), which provides an annular knife ed e 6 at the base of each prong.

s in Fig. 4; a wire nail 7 may be provided with a blunt end 8 out at right angles to the side walls to receive an annular cutting edge 9 at the lower end of the nail and this, like the staple prongs, may be concaved as at 10.

In the manufacture of staples in accordance with my present invention, the pointing of the same is dispensed with, and it is feasible to employ wire and merely shear is cut at right angles to the walls will, when the samelstraight through prior to bending the length thereof into staple formation.

Having thus described my invention, what I claim as new and desire to protect by Intters Patent of the United States is 2-- A nail for driving into wood for securing purposes comprising a head and rigid elongated shank of relatively small diameter, the lower or driving end of the shank being dished to provide a sharp peripheral cutting edge of the same circumference as the shank.

n testimony whereof I have signed my name to this s ecification.

G ORGE X. WENDLING. 

